Dement, John M. Estimates of pulmonary and gastrointestinal deposition for occupational fiber exposures / by John M. Dement - Washington, D.C. : U.S. Department Health, Education and Welfare, 1979 - 75 p. ; 29 cm. Subjects--Topical Terms: Occupational diseasesIndustrial diseases Dewey Class. No.: 616.9803